Improvement in compounds for hardening lime and cement mortars



I06. COMPOSITIONS,

COATING OR PLASTIC.

lINI'I'En STATES PATENT OFFICE &

FRANCIS WICOLBY, on STREATOR, ILLINOIS, ASSIGNOR OF ONE-HALF 111s RIGHT TO KEVER OLYMER, or SAME PLACE.

IMPROVEMENT IN COMPOUNDS FOR HARDENING LIME AND CEMENT MORTARS.

Specification forming part of Letters Patent No. 158,036, dated December 22, 1874; application filed November 21, 1874.

To all whom it may concern: To make my compound No. 2, I take the Be it known that I, FRANCIS W. COLBY, of Streator, county of La Salle and State of lllinois, have invented a new and useful Improvement in Compounds for Hardening and Tempering Lime and Cement Mortars, of which the following is a specification:

T e object of the present invention is to provide means for hardening and increasing the strength of lime and cement mortar. The nature of the invention consists in the combination. off nitrate of potash orhsoda and saccharine substance with the cement or mortar, andmitrate off-potash and sa ccharine substance and hyposul'p'hit'eoi' soda and alum, mixed with mortar or cement, ashereifiaffer set forth in detail.

To make six gallons of my compound No. 1, to one gallon of water add two pounds of nitrate ot' iotash mo pounds of sugar or moasses and IIeat 'entl until the ni r1c vapor oxaic 1s formed; then add five gallons of watmfifile compound is ready for use. I or cements, I use enough of this solution to bring it to a proper consistancy for use. For lime mortars I use enough of the solution to temper them.

above com ound as described under the head of So. I, and add to it one pound of hv )oalum and t lree sul )IIItB of soda one pound ot pounds oi siIlcate of soda and add four gal lons of ater. buI )IIEEZJILILQ I 10 'lcousider.

the equiva e n o a um. use IS compound .I the same as No. 1. It makes, however, a very much stronger cement. The proportions may be varied, and the amount of the compound used lessened or increased, and yet make mortar and cement very strong; but I prefer to make and use it in the manner described and set forth.

I claim and desire to secure by Letters Patent of the United States- 1. The combination of nitrate of potash or soda, saccharine substance with lime, mortar, and cement, as and for the purpose specified.

2. The combination of nitrate of potash, saccharine substance, hyposulphite of soda, alum, and silicate of soda, as and for the purpose described.

FRANCIS W. COLBY. Witnesses:

JOHN H. ELLIOTT, G. L. UHAPIN. 

